Actual loyalty tends to get nugatory rewards: a week's extra holiday for 25 years of service?

真正的忠诚往往会得到没值的奖励：任职25年就能增加一周的假期？

Assuming flexible money-wages, the quantity of money as such is, indeed, nugatory in the long period; but the terms on which the monetary authority will change the quantity of money enters as a real determinant into the economic scheme.

假设货工资是灵活的，货本身在长期内确实是零的；但是货当局改变货的条件作为真正的决定因素进入了经济计划。